Russian President Vladimir Putin said Sunday that the U.S. diplomatic missions in Moscow and elsewhere in the country will have to reduce their staffs by 755 people, signaling a significant escalation in the Russian response to American sanctions over the Kremlin’s intervention in the 2016 presidential election.

The United States and Russia have expelled dozens of each other’s diplomats before — but Sunday’s statement, made by Putin in an interview with the Rossiya-1 television channel, indicated the single largest forced reduction in embassy staff, comparable only to the closing of the American diplomatic presence in the months following the Communist revolution in 1917.

BERLIN (Reuters) - New sanctions against Russia proposed by U.S. lawmakers and which could harm European firms violate international law and the European Commission should consider counter-measures, the German economy minister was quoted on Monday as saying.

"We consider this as being against international law, plain and simple," Brigitte Zypries told the Funke Mediengruppe newspaper chain. "Of course we don't want a trade war. But it is important the European Commission now looks into countermeasures."

The German government and business leaders have said the new sanctions passed this month by the U.S. House of Representatives could prevent German companies from working on pipeline projects that they say are essential to Germany's energy security.